A 10% hill is only a 5.7-degree slope. See what hill gradient means, how to measure any hill, the best grade for hill sprints, and a beginner sprint plan.
Two groups of runners with the same 10K time ran 90 minutes at threshold. The group that never ran longer than 70 minutes lost nearly twice as much running economy. Here’s what that means for your pace and the training habits linked to holding it.
Double threshold training means 2 threshold sessions in 1 day. See what elites run and 5 single-session workouts that give you the same benefit. Learn more.
In Strava data from 158,000 marathoners, a strict 3-week taper was linked to a finish 5 minutes 32 seconds faster than a minimal taper, yet about 69% of runners let their mileage climb back up mid-taper. Here is how that relaxed taper affects your race, why a rest-only taper backfires, and how much to cut each week.
Your watch measures HRV accurately, but one morning’s reading says almost nothing about your fitness. Here are the 4 HRV trends the research supports, a decision table for low-HRV days, and how to measure HRV so the trend means something.
A strong headwind can cost about 12 seconds per mile, but effort pacing and drafting win most of it back. See how much wind slows you and how to beat it.
Switching to high-drop running shoes too fast injures 86% of runners. Follow this research-backed 12-week protocol to transition safely and stay pain-free.
A down week is a planned cutback that makes you fitter, not slower. Learn what it does, how much to reduce mileage, and how often to take a recovery week.
Your easy pace often stalls or slows deep in a training block, and research shows muscle damage cuts running economy 3-7%. See what to judge instead. Find out.
Sore arms, shoulders, or biceps after running? Learn why it happens, when soreness peaks, the form fixes that prevent it, and the warning signs to watch.
